I use the Raid wasp/hornet spray in the black and white can. It drops them within a couple of seconds leaving them twitching on the ground. And as an added bonus, I found this spray the most effective on Black and Brown widows as it does the same thing and drops them immediately from their web. I've tried all kinds of spider sprays and concentrates and nothing comes close to the Raid. Happy hunting

was trimming around pond 2 weeks ago. bumble bees got me. weed eater stayed there while most of them chased me for about 150 yards. only got stung 5 times. weed eater idled for about 30 minutes till they settled down, then it was my turn. stop counting at about 80 dead bees.